(a) Securities issued by an authority shall not be general obligations of the authority but shall be payable solely out of the revenues from any health care facilities or other properties or assets (including, without limitation, proceeds from such securities, investment income and insurance and condemnation proceeds) owned or operated by it and the proceeds of any hospital tax appropriated, apportioned or allocated to it or for its benefit, or any portion of either thereof, all as may be provided or specified in the resolution of the board authorizing such securities or the indenture under which issued. The principal of and interest (and premium, if any) on any securities issued by the authority shall be secured by a pledge of the revenues or taxes (or both) out of which the same are payable and may be secured by a trust indenture evidencing such pledge or by a foreclosable mortgage, mortgage indenture or mortgage and trust indenture conveying as security for such securities all or any part of its property.

(b) Any indenture executed on behalf of the authority and any resolution of the board authorizing the issuance of securities may contain such agreements as the board may deem advisable respecting the operation and maintenance of the properties of the authority, the application and use of any revenues (including hospital tax proceeds) out of which any such securities are payable, the rights or duties of the parties to such instrument or the parties for the benefit of whom such instrument is made and the rights and remedies of such parties in the event of default, and may also contain provisions restricting the individual rights of action of the holders of any such securities. Any such indenture may be filed in the office of the judge of probate of any county in which any of the property, real, personal or mixed, subject to the lien thereof is, or is anticipated to be, located, and the lien of such indenture shall, with respect to all personal property and fixtures subject thereto (including after-acquired property) and notwithstanding any contrary provisions of, and without compliance with, the Alabama Uniform Commercial Code (Title 7), be valid and binding against all parties having claims of any kind against the authority, irrespective of whether the parties have actual notice thereof, from the time such indenture is so filed. Any such pledge of any such revenues (including hospital tax proceeds) shall be valid and binding from the time it is made, and the revenues (including hospital tax proceeds) so pledged and thereafter received by the authority shall immediately become subject to the lien of such pledge without any physical delivery thereof or further act. The lien of such pledge shall, notwithstanding any contrary provisions of the Alabama Uniform Commercial Code (Title 7), and without compliance with the provisions thereof, be valid and binding against all parties having claims of any kind against the authority, irrespective of whether the parties have actual notice thereof, from the time there is filed in the office of the judge of probate of the county in which the principal office of the authority is located a notice stating the date on which the resolution authorizing the issuance of the securities was adopted by the board, the principal amount of the securities issued, a brief description of the revenues (including any hospital tax proceeds) so pledged and a brief description of any property the revenues from which are so pledged. Issuance by any authority of one or more series of securities for one or more purposes shall not preclude it from issuing other securities, but the resolution or indenture whereunder any subsequent securities may be issued shall recognize and protect any prior pledge or mortgage made for the benefit of any prior issue of securities unless in the proceedings authorizing such prior issue the right was reserved to issue subsequent securities on a parity with such prior issue. The trustee under any indenture may be a trust company or bank having trust powers, whether located within or without the state, and may be selected by the board without regard to the provisions of Chapter 25 of Title 36.